Saw-clam p



(No Mdel.)

T. ORISPIN.

i SAW CLAMP. No. 265,761. Patented 06u10, 1882.

UNITED STATES PATENT OEEIcE.

THOMAS ORISPIN, OF DETROIT, MICHIGAN.

SPECIFICATION Vforming' part of Letters Patent No. 265,761, datedOctober 10, 1852. Appiiearion inea April 15, Issa. (No model.)

To all whom it may concern:

Be it known that I, THOMAS URISPIN, of De- Iroit,in thecounty ofWayneandStateofMichigan, haI'e invented a new and useful mechanical tool forholding saws while being tiled, or holding boards while sawing miters orjointing oft' the edges of the same, of which the following is aspeci'cation.

My invention relates to an improvement in saw-clamps; and it consists inthe combination of a suitable holding-frame, having one ot' itsstandardsslotted, with apivoted presser-bar having a series of notches,so that it can be adjusted back and forth to suit different thicknessesof material, as will be more fully described hereinafter.

Figure 1 is a side elevation of my invention complete. Fig. 2 is adetached view ot' the presser-bar. Figisanedgeviewoftheclamp.

A represents the frame, which is provided with the two standards E I andthe studs or projections C, which are intended to t in holes in a benchor plank to hold the clamp in position while in use. The standard E isdivided vertically into two parts, as shown in Fig. 3, and serves as abearing for the pivotal bolt F, upon which the presser-bar D is held.lThe standard I is considerably higher than the standard E,'and servesto receive the pressure of the saw, board, or other article beingoperated upon upon one side, while the presser-bar bears against theother. This presser-bar D has the two extensions B H, which extend inopposite directions, -the lower one, H, being the shortest,ai1d made toincline forward at its lower end toward the standard I. This end is madeto extend forward beyond the eXtension B, so that when a board or otherarticle is dropped upon it the end or tension will act as a lever totilt the upper end, B, forward against the article, and the article willthen be held securely between the two ends B H on one side andthestandard Ion the other. In this presserbar D is made a horizontalslot, so that the bar can be adjusted back and forth on the bolt F inrelation to the standard I, and thus accommodate itself to articles ofdifferent thicknesses. The upper edge of this slot has a number ofrecesses, Gr, formed in it, each one ot' which serves as a bearing forthe bolt. By ineans of these recesses the bar can be held at any pointthat may be desired.

Having thus described my invenion, I claim- The combination ofthe framehaving the. two standards E I, presser-bar l), adjustable back andforth, and having the ends B H, and the pivotal bolt, substantially asshown.

THOMAS GKISPIN.

Witnesses:

DENNIS B. WILLIAMS, W. W. COPELAND.

